#[std]
fn main() {
putstr("0 == 0 -> "); putboolln(0 == 0);
putstr("0 != 0 -> "); putboolln(0 != 0);
putstr("1 == 0 -> "); putboolln(1 == 0);
putstr("1 != 0 -> "); putboolln(1 != 0);
putstr("0 == 1 -> "); putboolln(0 == 1);
putstr("0 != 1 -> "); putboolln(0 != 1);
}